Pith Number

pith:YRR2BJVU

pith:2026:YRR2BJVUIXCD6O3STOZIYRNRK2

not attested not anchored not stored refs pending

NMKFR: A Robust Framework for Time-Aware Cold-Start Recommendation

Chengzhi Liu, Ning Zeng, Zehui Qu

arxiv:2607.26429 v1 · 2026-07-29 · cs.IR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YRR2BJVUIXCD6O3STOZIYRNRK2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-30T01:18:24.176342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

c463a0a6b445c43f3b729bb28c45b156867a295da32be31e552f1b45d01e91cf

Aliases

arxiv: 2607.26429 · arxiv_version: 2607.26429v1 · doi: 10.48550/arxiv.2607.26429 · pith_short_12: YRR2BJVUIXCD · pith_short_16: YRR2BJVUIXCD6O3S · pith_short_8: YRR2BJVU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/YRR2BJVUIXCD6O3STOZIYRNRK2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: c463a0a6b445c43f3b729bb28c45b156867a295da32be31e552f1b45d01e91cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3498e1c9b1604d798b95e700cef3211e0b00e44329d877bccfd5cf2e989e79ca",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-07-29T03:15:36Z",
    "title_canon_sha256": "d4b404716a61d45594e7acd540c7af73b54098812fba2985ba51bc4b25ce82f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26429",
    "kind": "arxiv",
    "version": 1
  }
}